Patents by Inventor Xingwen Yi

Xingwen Yi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multi-waveband OFDM receiver, and frequency offset compensation method and system
    Patent number: 9628316
    Abstract: A multi-waveband OFDM receiver and a frequency offset compensation method and system are disclosed. The method includes: performing single waveband frequency offset estimation on an optical comb line of each order; classifying the optical comb lines into a low mutation optical comb line and a high mutation optical comb line; performing joint frequency offset estimation on the low mutation optical comb line; and performing compensation for a frequency offset of a radio frequency drive signal by using an estimated joint frequency offset. The present invention improves accuracy and reliability of the frequency offset estimation of the radio frequency drive signal, so that the degree of the compensation for the frequency offset of the radio frequency drive signal is more comprehensive and accurate.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 18, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xingwen Yi, Cheng Hong, Huaping Qing
  • MULTI-WAVEBAND OFDM RECEIVER, AND FREQUENCY OFFSET COMPENSATION METHOD AND SYSTEM
    Publication number: 20160149742
    Abstract: A multi-waveband OFDM receiver and a frequency offset compensation method and system are disclosed. The method includes: performing single waveband frequency offset estimation on an optical comb line of each order; classifying the optical comb lines into a low mutation optical comb line and a high mutation optical comb line; performing joint frequency offset estimation on the low mutation optical comb line; and performing compensation for a frequency offset of a radio frequency drive signal by using an estimated joint frequency offset. The present invention improves accuracy and reliability of the frequency offset estimation of the radio frequency drive signal, so that the degree of the compensation for the frequency offset of the radio frequency drive signal is more comprehensive and accurate.
    Type: Application
    Filed: January 29, 2016
    Publication date: May 26, 2016
    Inventors: Xingwen Yi, Cheng Hong, Huaping Qing